[0007] [Means for Solving the Problem] According to the inventor’s research, in a plate-shaped three-dimensional network structure in which a random spiral linear thermoplastic resin is adhered
[0007] [means to solve the problem] according to the research of the inventor, in a flat plate-like three-dimensional network structure in which a random spiral linear thermoplastic resin is connected<br>
[0007] means to solve the problem [means to solve the problem] according to the research of the present inventor, in a plate-like three-dimensional network structure in which a random spiral linear thermoplastic resin is followed,